Electrophotographic photoreceptor and electrophotographic cartridge and electrophotographic imaging apparatus employing the same

The present invention discloses an electrophotographic photoreceptor, in which a photosensitive layer or a surface layer of an overcoating layer satisfies the following conditions (1) and (2): Tg > 100°C ... (1), and hardness > 0.22 GPa ... (2), in which Tg represents a glass transition temper...

Full description

Saved in:
Bibliographic Details
Main Authors LEE HWAN KOO, SONG HYE JI
Format Patent
LanguageEnglish
Korean
Published 09.04.2020
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The present invention discloses an electrophotographic photoreceptor, in which a photosensitive layer or a surface layer of an overcoating layer satisfies the following conditions (1) and (2): Tg > 100°C ... (1), and hardness > 0.22 GPa ... (2), in which Tg represents a glass transition temperature of the photosensitive layer. The photosensitive layer may effectively suppress or prevent a phenomenon in which a cleaning blade coming into contact with the same is overturned by controlling the photosensitive layer to satisfy the conditions (1) and (2), also increase a degree of freedom when selecting the cleaning blade, and reduce possibility of causing a high-frequency noise due to abrasion. The present invention also discloses an electrophotographic cartridge and an electrophotographic imaging apparatus comprising the photoreceptor. 감광층 또는 오버코팅층의 표면층이 다음 조건 (1) 및 (2)를 만족하는 전자사진 감광체가 개시된다: Tg > 100℃ ... (1), 및 경도 > 0.22 GPa ... (2), 여기에서, Tg는 상기 감광층의 유리전이온도를 나타낸다. 본 감광체는 조건 (1) 및 (2)를 만족하도록 제어함으로써 이와 접촉하는 클리닝 블레이드가 뒤집히는 현상을 효과적으로 억제 또는 방지할 수 있을 뿐만 아니라 클리닝 블레이드의 선정에 있어서 자유도를 증가시킬 수 있으며 마찰에 의한 고주파 소음 유발할 가능성을 감소시킬 수 있다. 본 감광체를 포함하는 전자사진 카트리지 및 전자사진 화상형성장치도 개시된다.
Bibliography:Application Number: KR20180117226